feat: support app-defined icon sets

crates/core/src/empty_state.rs

@@ -3,7 +3,7 @@ use gpui::{
     App, IntoElement, ParentElement as _, RenderOnce, SharedString, StyleRefinement, Styled as _,
     Window, div, relative,
 };
-use gpui_native_icons::{IconRole, icon};
+use gpui_native_icons::Icon;
 use gpui_native_theme::{ActiveTheme as _, Size};
 
 use crate::common::{StyledExt, v_flex};
@@ -11,7 +11,7 @@ use crate::common::{StyledExt, v_flex};
 /// The centered "nothing here yet" panel for lists, tables, and searches.
 #[derive(IntoElement)]
 pub struct EmptyState {
-    icon: Option<IconRole>,
+    icon: Option<Icon>,
     headline: SharedString,
     hint: Option<SharedString>,
     action: Option<gpui::AnyElement>,
@@ -34,8 +34,11 @@ impl EmptyState {
     }
 
     /// Sets a large muted icon above the headline.
-    pub fn icon(mut self, role: IconRole) -> Self {
-        self.icon = Some(role);
+    pub fn icon<I>(mut self, icon: I) -> Self
+    where
+        I: Into<Icon>,
+    {
+        self.icon = Some(icon.into());
         self
     }
 
@@ -78,11 +81,11 @@ impl RenderOnce for EmptyState {
             .justify_center()
             .text_center()
             .p_4()
-            .when_some(self.icon, |state, role| {
+            .when_some(self.icon, |state, icon| {
                 state.child(
                     div()
                         .mb_2()
-                        .child(icon(role).size(illustration).color(muted_foreground)),
+                        .child(icon.size(illustration).color(muted_foreground)),
                 )
             })
             .child(